rirtracker

IPv4 range · 32,768 addresses

144.168.128.0/17

Now

ARIN statistics
Allocated (dated 2023-03-30) (US), in the latest file
Registry
ARIN
Holder
Amazon.com, Inc.
From
ARIN's latest statistics and the latest transfer record

Latest change

+ Add Intra-ARIN transfer

Reported
2023-03-30 (ARIN)
Confidence
Confirmed
Inventory
No effect on ARIN applicant inventory

Timeline (2)

Every change the tracker has found, newest first. It covers ARIN from 2008-12-01, the RIPE NCC from 2010-04-23, APNIC from 2008-02-15, LACNIC from 2012-06-29 and AFRINIC from 2012-10-03.

2023-03-30 ARIN + Add Intra-ARIN transfer Confirmed
ARIN-Issued
Add 144.168.128.0-144.168.255.255
From
B2 Net Solutions Inc. ARIN
To
Amazon.com, Inc. ARIN
Inventory
No effect on ARIN applicant inventory

ARIN's transfer log records a transfer from B2 Net Solutions Inc. (ARIN) to Amazon.com, Inc. (ARIN) on 2023-03-30 11:36 UTC. ARIN-Issued lists it as "Add" because the registration changed hands; it is not a new allocation from ARIN.

Evidence (4) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2023-03-30: "Add 144.168.128.0-144.168.255.255" source · retrieved
  2. Transfer log Transfer log: RESOURCE_TRANSFER on 2023-03-30 11:36 UTC, B2 Net Solutions Inc. (ARIN) to Amazon.com, Inc. (ARIN); resources moved: 144.168.128.0/17 source · retrieved
  3. Before ARIN delegated statistics 2023-03-29 (produced 2023-03-29T13:00:11+00:00), before the report: allocated (dated 2015-09-02) source · retrieved
  4. After ARIN delegated statistics 2023-03-31 (produced 2023-03-31T13:00:10+00:00), after the report: allocated (dated 2023-03-30) source · retrieved
Classification history for this change (4 versions)
  1. : Intra-ARIN transfer, confirmed (classifier 1.3.0)
  2. : Intra-ARIN transfer, confirmed (classifier 1.3.1)
  3. : Intra-ARIN transfer, confirmed (classifier 1.3.2)
  4. : Intra-ARIN transfer, confirmed (classifier 1.4.0) current
2015-09-02 ARIN + Add Unresolved change Observed only
ARIN-Issued
Add 144.168.128.0-144.168.255.255
Inventory
Inventory effect unknown

No transfer record matches. ARIN's statistics show it not listed on 2015-09-01 and allocated (dated 2015-09-02) on 2015-09-03. It wasn't in ARIN's statistics before, so it wasn't ARIN's unissued inventory; it may have come from another registry in a transfer not yet in the log.

Evidence (3) · classifier 1.4.0,
  1. ARIN-Issued ARIN-Issued report for 2015-09-02: "Add 144.168.128.0-144.168.255.255" source · retrieved
  2. Before ARIN delegated statistics 2015-09-01 (produced 2015-09-01T05:05:28+00:00), before the report: not listed source · retrieved
  3. After ARIN delegated statistics 2015-09-03 (produced 2015-09-03T05:05:25+00:00), after the report: allocated (dated 2015-09-02) source · retrieved
Classification history for this change (4 versions)
  1. : Unresolved change, observed only (classifier 1.3.0)
  2. : Unresolved change, observed only (classifier 1.3.1)
  3. : Unresolved change, observed only (classifier 1.3.2)
  4. : Unresolved change, observed only (classifier 1.4.0) current

Changes to overlapping ranges

DateRegistryRangeRecorded asWhat happened
2012-05-21RIPE NCC144.168.0.0/16− DeregisteredRemoved
2012-03-14RIPE NCC144.168.0.0/16+ RegisteredApparent reissuance
2011-01-27RIPE NCC144.168.0.0/16− DeregisteredRemoved

Transfer records (1)

Date (UTC)LogTypeRange movedFromTo
ARINResource transfer144.168.128.0/17 B2 Net Solutions Inc. ARINAmazon.com, Inc. ARIN

Every record in the ARIN, RIPE NCC, APNIC, LACNIC and AFRINIC transfer logs that moved any part of this IPv4 range (ARIN's from 2009, the RIPE NCC's from 2012, APNIC's from 2010, LACNIC's from 2016, AFRINIC's from 2018). A transfer between two registries is in both logs.

RDAP lookups

Not looked up. The tracker queries RDAP for changes as they're reported (on first sight, after 24 hours and after seven days); older changes aren't looked up because today's RDAP says nothing about the past.

This page as data: ip/144.168.128.0-144.168.255.255.json